About the ECW500
ECW500 | 17
IGBT: Insulated Gate Bipolar Transistor; basic component of the output inverter bridge. Functions as electronic
switches in saturated (switch closed) and cut off (open switch) modes.
HMI: human-machine interface; device that allows configuring, viewing and changing parameters of the
ECW500; features command keys, navigation keys and graphic LCD display.
USB -and-
concept.
PE: Protective Earth.
PWM: Pulse Width Modulation; modulation by pulse width, pulsed tension that provides excitation for the
synchronous machine through the field output terminals.
Switching Frequency: switching frequency of the IGBTs, usually given in kHz.
Heatsink: piece of metal designed to dissipate heat generated by power semiconductors.
Amp, A: Amps.
°C: degrees Celsius.
AC: alternate current.
DC: direct current.
Hz: hertz.
min: minute.
rms: root mean square; effective value.
rpm: revolutions per minute; unit of speed.
s: second.
V: volts.
: ohms.
IT: inverse time; term used to indicate the actuation time of the current limiters based on the inverse time
characteristic (Ixt); the higher the current that exceeds the limit set, the lower the actuation time of the relevant
limiter.
NO: Normally Open
NC: Normally closed
Numerical multipliers
■ k (quilo): x1.000 (x10
3
)
■ M (mega): x1.000.000 (x10
6
)
■ G (giga): x1.000.000.000 (x10
9
)
■ m (mili): ÷1.000 (x10
-3
)
■ (micro): ÷1.000.000 (x10
-6
)
■ n (nano): ÷1.000.000.000 (x10
-9
)
4.2 SOFTWARE VERSION
The software version used on the ECW500 defines the functions and programming parameters, and it can be
updated during the product lifecycle.